Question about 2000 Cadillac DeVille

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My 2000 Deville keeps running hot. I drive thirty miles to work everyday and by the time I get to work my temperature gauge goes into the hot area. I changed the thermostat and a couple of warn out hoses already, but that didn't help.

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Are the fans coming on?

Posted on Jan 04, 2011

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I had the same problem on my 9-5 vector 3.0 TiD with the top up coolant warning. Nearly became bankrupt trying to diagnose the problem and trips to Saab. Header tank, sensors, pressure tested etc. The Saab squaddies couldn't figure it out until it got worse. It's a head gasket failure despite passing pressure tests initially...sounds like it's still early days on yours. Had to replace the engine for near £5000.but under warranty :-) Reckon 2.5-3k at a good specialists.

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Within the past three months, I have put two thermostats in my 1991 Honda Accord, and it is still overheating. I have bled the system, and replaced the radiator cap. The temperature gauge fluctuates...


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My 2000 Jaguar S-Type High Engine Temperature message comes on and the temperature gauge goes to maximum hot for about 45 seconds then goes back to normal within a few seconds. This happened about 4 times...


I assume the car drives okay the rest of the time at varying speeds and conditions?
It may be you have an air lock in the system (have you had work done or lost coolant?) or the sensor or its wiring is faulty.
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2000 chevy blazer 4X4. After driving twenty to thirty miles on freeway when I pull off to the off ramp and come to a stop my battery gauge will start to flicker as well as my fuel gauge, will do that...


Are there any codes in the pcm?
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Make sure the battery cables are tight and clean.
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To me it sounds like your new fuel pump is loosing pressure while running for a while. But try and get a pressure reading and post back, that will give us something to rule out, or to address.
I think the light flicker you are talking about is just low engine rpm's?

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